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Erschienen in:
2013 | OriginalPaper | Buchkapitel
9. Actual Operation and Control of Fast Reactor
verfasst von : Hidetaka Takahashi, Kiyoshi Tamayama
Erschienen in: Nuclear Reactor Kinetics and Plant Control
Verlag: Springer Japan
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Abstract
A fast breeder reactor has several features that make it different from a light water reactor. The fuel is plutonium and uranium-mixed oxide, the reactor core enables breeding mainly by reaction of fast neutrons, and it has high power density and burn-up levels. In addition, sodium is used as the coolant and the operating temperature is far below the boiling point (approximately 880°C at 1 atmospheric pressure). So, the reactor cooling system is designed to operate at low pressure and high temperatures. Sodium is active chemically, and the sodium liquid surface has to be covered with inactive gas.